<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<!--表单-->
<form>
    用户名:<input><br>
    密码:<input type="password"><br>

    爱好:
    <input type="checkbox">吃饭
    <input type="checkbox">睡觉
    <input type="checkbox">打代码<br>

    性别:
    <input type="radio" checked name="sex">男
    <input type="radio" name="sex">女<br>

    想说的话:
    <textarea></textarea>

    <input type="submit">
</form>

</body>
</html>